Discovery of high affinity anti-ricin antibodies by B cell receptor sequencing and by yeast display of combinatorial VH:VL libraries from immunized animals

Bo Wang, Chang Han Lee, Erik L. Johnson, Christien A. Kluwe, Josephine C. Cunningham, Hidetaka Tanno, Richard M. Crooks, George Georgiou, Andrew D. Ellington

Research output: Contribution to journalArticlepeer-review

27 Scopus citations

Abstract

Ricin is a toxin that could potentially be used as a bioweapon. We identified anti-ricin A chain antibodies by sequencing the antibody repertoire from immunized mice and by selecting high affinity antibodies using yeast surface display. These methods led to the isolation of multiple antibodies with high (sub-nanomolar) affinity. Interestingly, the antibodies identified by the 2 independent approaches are from the same clonal lineages, indicating for the first time that yeast surface display can identify native antibodies. The new antibodies represent well-characterized reagents for biodefense diagnostics and therapeutics development.

Original languageEnglish (US)
Pages (from-to)1035-1044
Number of pages10
JournalmAbs
Volume8
Issue number6
DOIs
StatePublished - Aug 17 2016
Externally publishedYes

Keywords

  • Antibody repertoire analysis
  • next-generation sequencing
  • ricin A chain
  • yeast surface display

ASJC Scopus subject areas

  • Immunology and Allergy
  • Immunology

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